Commercially available ionic liquids enable high-performance of aqueous zinc-iodine batteries: Sequestered nitrogen-sites for efficient electrocatalytic iodine conversion

Chen, Xinyu, Zhao, Yuwei, Zheng, Yunshan, Xu, Huifang, Jiang, Qingbin, Chen, Tianyu, Hui, Kwan San ORCID: https://orcid.org/0000-0001-7089-7587, Hui, Kwun Nam, Zhang, Linghai and Zha, Chenyang (2024) Commercially available ionic liquids enable high-performance of aqueous zinc-iodine batteries: Sequestered nitrogen-sites for efficient electrocatalytic iodine conversion. Journal of Materials Chemistry A, 12 (27). pp. 16892-16900. ISSN 2050-7488

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Abstract

The high performance of aqueous zinc-iodine batteries is limited by the soluble polyiodide shuttling and sluggish redox kinetics. Various strategies have been proposed to address these issues, but most of these optimizing strategies either add additional hurdles to the manufacturing process or require materials that are not currently commercially available. Herein, we take advantage of commercial 1,2-dimethyl-3-propylimidazolium iodide to serve as a redox reaction catalyst for the activation of iodine cathodes without any other material modification. Due to the strong bonding coordination between 1,2-dimethyl-3-propylimidazolium iodide and the polyiodides, the as-prepared cell has a high specific capacity (147 mAh/g) at 50 C, and ultralong cycling performance (20000 cycles) with better capacity retention. This work introduces an effective and commercial material that enables bringing aqueous rechargeable zinc iodine batteries to the practical energy market.

Item Type: Article
Additional Information: Funding Information: This work was supported by the Science and Technology Development Fund (FDCT) of Macao S.A.R (0033/2023/ITP1 and 0022/2023/RIB1), the National Natural Science Foundation of China (61904080 and 22205101), the Cultivation Program for The Excellent Doctoral Dissertation of Nanjing Tech University, the Macau Young Scholars Program (AM2020005), Guangdong Basic and Applied Basic Research Foundation (2022A1515110994 and 2024A1515030228), and the High-Performance Computing Cluster (HPCC) of Information and Communication Technology Office (ICTO) at the University of Macau.
Faculty \ School: Faculty of Science > School of Engineering
University of East Anglia Research Groups/Centres > Theme - ClimateUEA
UEA Research Groups: Faculty of Science > Research Groups > Emerging Technologies for Electric Vehicles (EV)
Faculty of Science > Research Groups > Energy Materials Laboratory
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Depositing User: LivePure Connector
Date Deposited: 12 Jun 2024 10:30
Last Modified: 10 Jul 2024 16:31
URI: https://ueaeprints.uea.ac.uk/id/eprint/95593
DOI: 10.1039/D4TA02558J

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